Taking the risk caused by the train breaking up into account

Implemented

Rail R

Accident

13.9.2022

2022-S22

Suosituksen perustelu

In the accident, the train broke in two between the locomotive and the metro that had been connected to it with a towing adapter. The collision of the metro with the locomotive and the resulting derailment was due to the deficiencies in the installation of the brake conduit used to control the brakes of the measurement carriage connected to the metro, which had no brakes.
A train breaking up is a known risk in rail traffic. The break is not assumed to cause an accident, because in a normal situation, the brake arrangements will ensure that the parts of the train will come to a safe and controlled stop. This risk should be taken into account in temporary transfers, however.

Recommendation

Railway operators should verify that brakes work in transfers of rolling stock implemented with special arrangements and take the risk of the train breaking up into account.

Suosituksen tarkennus

As far as possible, the arrangements of temporary transfers should be implemented in accordance the regulations that guide safe operation. The correct implementation of a temporary brake conduit and coupling hoses in particular is important for ensuring the safe operation of the brakes.

Toimenpide-ehdotukset

In the accident, the train broke in two between the locomotive and the metro that had been connected to it with a towing adapter. The collision of the metro with the locomotive and the resulting derailment was due to the deficiencies in the installation of the brake conduit used to control the brakes of the measurement carriage connected to the metro, which had no brakes.
A train breaking up is a known risk in rail traffic. The break is not assumed to cause an accident, because in a normal situation, the brake arrangements will ensure that the parts of the train will come to a safe and controlled stop. This risk should be taken into account in temporary transfers, however.